Pith Number

pith:SB2J5PAF

pith:2015:SB2J5PAFHRRBTNGI4HFCXC5CQY

not attested not anchored not stored refs pending

Cities through the Prism of People's Spending Behavior

Bartosz Hawelka, Carlo Ratti, Izabela Sitko, Juan Murillo Arias, Remi Tachet des Combes, Stanislav Sobolevsky

arxiv:1505.03854 v1 · 2015-05-14 · physics.soc-ph · cs.SI

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SB2J5PAFHRRBTNGI4HFCXC5CQY}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:16:18.753654Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90749ebc053c6219b4c8e1ca2b8ba2863aa27584af406ff27f6f0dc3d79dfe6f

Aliases

arxiv: 1505.03854 · arxiv_version: 1505.03854v1 · doi: 10.48550/arxiv.1505.03854 · pith_short_12: SB2J5PAFHRRB · pith_short_16: SB2J5PAFHRRBTNGI · pith_short_8: SB2J5PAF

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/SB2J5PAFHRRBTNGI4HFCXC5CQY \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 90749ebc053c6219b4c8e1ca2b8ba2863aa27584af406ff27f6f0dc3d79dfe6f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45a4e881c0c1f919dcc621474f1f7df4840f1fb358477d2a4ee0a72625de9f9b",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2015-05-14T19:52:32Z",
    "title_canon_sha256": "64f5adf7111e0bcbc1dc363b3fb3b01a077de06e78f4d28f9755adaf9d11bd66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.03854",
    "kind": "arxiv",
    "version": 1
  }
}